llvm::vputils Namespace Reference

Functions
bool	onlyFirstLaneUsed (VPValue *Def)
	Returns true if only the first lane of Def is used. More...
VPValue *	getOrCreateVPValueForSCEVExpr (VPlan &Plan, const SCEV *Expr, ScalarEvolution &SE)
	Get or create a VPValue that corresponds to the expansion of Expr. More...

Function Documentation

getOrCreateVPValueForSCEVExpr()

VPValue * llvm::vputils::getOrCreateVPValueForSCEVExpr	(	VPlan &	Plan,
		const SCEV *	Expr,
		ScalarEvolution &	SE
	)

Get or create a VPValue that corresponds to the expansion of Expr.

If Expr is a SCEVConstant or SCEVUnknown, return a VPValue wrapping the live-in value. Otherwise return a VPExpandSCEVRecipe to expand Expr. If Plan's pre-header already contains a recipe expanding Expr, return it. If not, create a new one.

Definition at line 1051 of file VPlan.cpp.

References llvm::VPBasicBlock::appendRecipe(), E, llvm::VPValue::getDef(), llvm::VPlan::getEntry(), llvm::VPBlockBase::getEntryBasicBlock(), llvm::VPlan::getOrAddExternalDef(), and llvm::VPTransformState::Plan.

Referenced by createWidenInductionRecipes(), llvm::VPlanTransforms::optimizeInductions(), and llvm::VPlanTransforms::VPInstructionsToVPRecipes().

onlyFirstLaneUsed()

bool llvm::vputils::onlyFirstLaneUsed

(

VPValue *

Def

)

Returns true if only the first lane of Def is used.

Definition at line 1046 of file VPlan.cpp.

References llvm::all_of(), and llvm::tgtok::Def.

Referenced by buildScalarSteps(), llvm::VPWidenPointerInductionRecipe::execute(), llvm::VPWidenPointerInductionRecipe::onlyScalarsGenerated(), and llvm::VPlanTransforms::removeRedundantCanonicalIVs().